Gearing.



1 I0.s57,s61.y V y v PATENTBD JUNE 18,1907.

' Y A f .1". PILAINL,

.GEARIN-G.

APPLIOATION FILED AUG. 16. 1905..

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g Y I -ATTORNEYS E.; PILA-IN. GEARING,

APPLIGATION FILE AUG.15,1905.

PATENTED JUNE 18, 1907.

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. L nml-:asis

myENToR ATTOR N EYS and 5a are other detail views'lrlsd in elevationupon asleeve which entends Vb Speciation. of

a 'Replb-lic; and a 'resi'- tbl relance, Lyon, France 1 in .ne anduseful ining. *,rgelatingespecially toa Vith direct @harige-speed gearsan( l which then This in A live ani-le; vehicle`s,` .A

A on, transversely co ars are secured 4 1n, the ybalance 1 s tthereto-K. Upon these n n rber of bevelV gear airline; .down iet@eersel...- f the. bearing' ledand are ca-l slotted bear '1g rings or canbe. driven .Speeleed e.' ,Gears or speeds 1 ticn of a. y En! andsection.

The lined portion or bridge of the axle is formed b v tubes A Aextending on each side of the casing B, the Whole forming a rigidstructure provided with a strengthening rod C and attached to the usualsprings D which provide for the suspension of the vehicle.

The.. axle properis composed of two lengths of sha-tt ,E Ev extending oneach side of theV bala-nec. gear F up to the driving Wheels, theseshafts E E being connected to the wheels b v any suitable arrangement.

The casing ol'thelt alance gear F is lengthcned b v sleeves y" and isinountedin the gear 1l centric bevel/Wheels ornii'ng between then-rcircular grooves iiitov n veirtion and iraces G, and the outer ring-ofthel'latter is LettersiPiatent.

LJ Kofdifferent diari "te rs; the latter inesli withtlnee' pinions i] i"formed with or securedto the' driving -shaft L i j'ournaled in thegearcasing B and proceed-16o fingfroni the inotortowvhicli itisconnectedinthe 'usual niannervvith .tlieinterposition of auniversal'or Cardan joint.

vEach of' the ball bearing rings-l'isfrnred of tnvoparts placed togetheraccording to fthe y construction shown nFigsa-nd 5a.' 'Figsri' and-etashowv the kconstruction 01"" jtl1e betteln Wheels I Which run upon thebea-'ring` ringsll" double. balll bearing. The )'rii'ig's H tare by lIneans ofltlleir `teeth lifiitted into grooves: made on theaforesaidsleeve fof thebalaiic'ej 0'ear casingtoxwhichv they are-.thus attached'land on the sides they Vareifurnished -Wit'lrgproj elctions h',bijv-#Whiclrthey are placed together -Whichftoothed .cr'oxvnsi jf leattached to'the 1 threebevel gear Wheelsl J K project?. lieWfliolesystern' of bearing rings H is clamped orlreld against the;balance gear casingjby-l i, n l'ounted the inside ring of one 'of the fball' l heldin position by a .Web ginade'fast-tothe i gear casing. kUpontlis differential gear cas-5 ing. sleeve f yis mounted a y.drum fori-nedl of a set of sliding; rods M i which pass-.into and through the-spacesbetween the teeth of the bearing rings H and.v those; of .tlregea-rcroivnsfL j.k,' these :rods B lrwliiclr` at one end are ats tachedto a sliding collar M capable of being struck in .either direction,lare, providedfat ftheir other end with key-lieadsm fof suitable.'dimensions so as tobe able.- to .engagesiniul-l taneously with one ringH' and the yserrat'ions' i y" or of one' of the adjacent c-roxm gearWheels I J K, thus connecting the latter with the ring and consequentlyWith the sleevefof the balance gear casing.

To the collar M issecured a striking-fork' M2 mounted on a shaftconnected to a con .trolling device Within reach of the driver.

The propellershaft pinion t' on the side opposite to thato'n which itmeshes with the forwardly lriving bevel gear .Wheel K engages androtates a rcarxvardly-driving bevel .wheel N mounted at n and furnishedWish.' a ring or' projeetidns -n with which can en- IOO case Bupon ballbearings (l G G. Secured to or 'lorincd with tlis casing of the balancegear are rings orcollars ll ll ll forming ball l bearing races fortlneeindependent but con-- gage key-heads mf inadeiast to the rods Maforesaid; these projections gm, are arranged to engage with theprojcctionsn"only when the key-heads m occupy-the space X and arecompletely freed from the bearing-rings. It

will' be noted that the largest gear wheels K and are supported close totheir periph- .erics by bearing against rollers or sets of tion that.the keys 'm are not engaged with any of the crowns or sleeves i j k ofthe l gear wheels I J K and its projections m re- .volve idly and theaxle is notdriven.

main away from the corresponding projections n of the reversing gearwheel N, as in the case illustrated, the gear wheels driven by the threepinions on the propeller shaft regiving to the drum M a position, suchthat itskeys' mi are at the same time in gear with one of the ballbearing rings H and with one of the" bevel wheel crowns i j le', forexample with the crown if that is to say the gear. wheel I, thedifferential and consequently the axle E E will be driven at thecorresponding speed and in this articular ease at t-hehighest speed.Bysiding the drum M longitudinally the drive is ef- -felclfe/d throughfirst tlige wheel I and next the w eel K and two otherlower speeds arethus obtained.

:gg/there is arranged a free position namely that when the. keys areentirely under one of the bearing rings i. j le. 'Io obtain the reversethe. druni .\I is pushed completely to the left so that the keys enterthe space X and are thus out of action; the other proiections m upon thesliding rods thereupon meet theprojections n. of the bevel wheel X; theaxlei 1s then driven in Athe reverse direction with the correspon(lingrspeed ratio. W'hen Between two successive speeds vree-t drive. By itsIcombination with the body of the live axle it dispenses with th usualseparate gearl box for changing speeds and direction, interposed betweenmotor and live axle. Any desired number of speeds may be used.

Having thus described'my invention, what- I claim as such and desire tolsecure by Letters Patent, is

1. In combination'4 with a live axleand a driving shaft for automobilevehicles, gearling of the character described comprising a ing the same7a mechanism for 'obtaining the reverse comprising a .bevelwheel lfacingsaid forward driving gearing and meshing with said inJon on the drivingshaft, said bevel 'wlie'e being provided with a toothed crown, togetherwith a longitudinally movable drum operatively connected to the liveaxle and having keyheaded bars for engagement between the teeth of thetoothed crown of the bevel wheel and ineansto operate said drum and torender the forward driving gearing inoperative duringthe functioning ofthe reverse mechanism.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses.

FRANCOIS PILAIN.

Titnessesz Trios. N. BRowNE, MARIN YACHON.

